package com.qs.interceptor;

import com.qs.ConStants;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @Description
 * @user HP
 * @email 1460961774@qq.com
 * @Date 2021-09-27 16:57
 * @packageName com.qs.interceptor
 */
public class LoginInterceotor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        Object attribute = httpServletRequest.getSession().getAttribute(ConStants.CURR_USER);
        if (attribute == null) {
            httpServletResponse.sendRedirect(httpServletRequest.getContextPath()+"/login.jsp");
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
